Ice storm spreads across U.S.

Snow covers buses for the Baltimore County Public Schools in Towson, Maryland, on Tuesday, December 10. Snow and ice snarled travel across parts of the United States, hitting major airline hubs in the Northeast.

Snow covers buses for the Baltimore County Public Schools in Towson, Maryland, on Tuesday, December 10. Snow and ice snarled travel across parts of the United States, hitting major airline hubs in the Northeast.